{They understood not} (ou sun(886b)an). First aorist active
indicative (one of the k aorists). Even Mary with all her
previous preparation and brooding was not equal to the dawning of
the Messianic consciousness in her boy. "My Father is God," Jesus
had virtually said, "and I must be in His house." Bruce observes
that a new era has come when Jesus calls God "Father," not
Despotes. "Even we do not yet fully understand" (Bruce) what
Jesus the boy here said.